Philadelphia Phillies catcher Carlos Ruiz was suspended for the first 25 games of next season for failing a second test for amphetamines, Major League Baseball announced Tuesday afternoon.

Ruiz tested positive for Adderall, according to a league source cited by the Philadelphia Inquirer. Adderall is commonly used to treat attention deficit hyperactivity disorder and is classified as a banned stimulant, not a steroid, under the league’s Drug and Treatment Prevention policy. That is why the first suspension is for 25 games rather than the 50 given to those who test positive for PEDs.

"I am sincerely regretful for my mistake in taking a prohibited stimulant," Ruiz said in a statement issued by the Major League Baseball Players Association. "I apologize to my teammates, the Phillies organization and the Philadelphia fans. I will serve the imposed 25-game suspension to begin the season and I look forward to returning to the field and working toward bringing a championship back to Philadelphia in 2013."

Ruiz can participate in spring training, including exhibition games.

"The Phillies fully support Major League Baseball's drug program," the team said. "We are disappointed by the news of this violation of the program. We will support Carlos in an appropriate manner and move forward to achieve our goal to play championship-caliber baseball in 2013."

Even a 25-game suspension hurts the Phillies. They already were a team focused on acquiring more offense, and now they must figure out how to get through the first month of the season without one of their best hitters from last season.

Ruiz hit .325/.394/.540 with 16 home runs and a 149 OPS-plus in 2012, easily the best offensive season of his seven-year career. He also made his first All-Star team.

MLB’s policy does not require a suspension after a first failed test for a stimulant but does require six unannounced follow-up tests over 12 months following the initial test. That does not count the standard random testing a player is subject to after a failed test. If Ruiz fails a third test, he would be suspended for 80 games.

Ruiz can file for a Therapeutic Use Exemption (TUE), which would allow him to use a drug like Adderall or Ritalin if an MLB-approved doctor diagnoses him with ADHD. In 2011, MLB granted 105 TUEs for ADHD.

Ruiz is the fourth player on the Phillies’ 40-man roster to be suspended for drug violations and the second major leaguer. Second baseman Freddy Galvis was suspended in June for testing positive for an anabolic steroid. Minor leaguers Kevin Frandsen and Zach Collier were suspended for using Ritalin and Adderall, respectively.